EP0776689B1 - Mischvorrichtung - Google Patents
Mischvorrichtung Download PDFInfo
- Publication number
- EP0776689B1 EP0776689B1 EP96810767A EP96810767A EP0776689B1 EP 0776689 B1 EP0776689 B1 EP 0776689B1 EP 96810767 A EP96810767 A EP 96810767A EP 96810767 A EP96810767 A EP 96810767A EP 0776689 B1 EP0776689 B1 EP 0776689B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- partial
- partitioning wall
- vortex
- mixing device
- vortex generator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000012530 fluid Substances 0.000 claims description 6
- 238000000638 solvent extraction Methods 0.000 claims 10
- 238000005192 partition Methods 0.000 description 37
- 238000000034 method Methods 0.000 description 5
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 229920001817 Agar Polymers 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/421—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions by moving the components in a convoluted or labyrinthine path
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/4317—Profiled elements, e.g. profiled blades, bars, pillars, columns or chevrons
- B01F25/43172—Profiles, pillars, chevrons, i.e. long elements having a polygonal cross-section
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/43197—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor characterised by the mounting of the baffles or obstructions
- B01F25/431971—Mounted on the wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/20—Heat transfer, e.g. cooling
- F05B2260/221—Improvement of heat transfer
- F05B2260/222—Improvement of heat transfer by creating turbulence
Definitions
- the invention relates to a mixing device for mixing two or more fluids that are the same or different May have mass flow, the to be mixed Fluids flow along a partition, on the downstream End of several vortex generators with free flow areas are arranged, several of them side by side are arranged, the side faces of the vortex generator are flush with one side of the partition and with each other include the arrow angle, the longitudinal ones Edges of the side surfaces at an angle to the wall run and the two side surfaces a connecting edge include each other, preferably perpendicular to the wall runs and the edge first hit by the flow is.
- EP 0619 134 A1 is a generic Mixing chamber described, the one, having several vortex generators Separating plate provides.
- a vortex generator has three free-flowing surfaces, one roof surface and two side surfaces, the roof surface runs under one Angle of attack to the partition plate, the two side surfaces close together Arrow angle on.
- the vortex generator is used to generate from a material flow Flow around longitudinal vortices.
- a vortex generator of almost the same structure goes out of the EP 0 620 403 A1.
- the vortex generators described in the two publications cited above each have a trailing edge that runs in a straight line on, i.e. the edge over which the roof surface is connected to the partition.
- the invention has for its object in a mixing device to improve the mixing of the type mentioned.
- the advantages of the invention include that by introducing the twisted towards the partition Trailing edges the downstream edge of the partition is extended. As a result, the contact area of the streams to be mixed are increased; further eddies created by the trailing edges. These vertebrae support and strengthen those of the longitudinal edges generated vortices of the vortex generator. In addition, the mixing of the streams to be mixed increased because the vertebrae are facing each other Propagate electricity, creating an interwoven flow pattern arises.
- the vortex generator element From the fluidic point of view, the vortex generator element a very low pressure drop when flowing around on and it creates vortices with no dead water area. Finally can the element through its usually hollow interior cooled in various ways and with various means become.
- Vortex generator 9 essentially from several freely flowing triangular surfaces. There are this is two partial roof surfaces 1, 2, two side surfaces 11, 13 and two partial floor areas not visible in FIG. 1. In These surfaces run under certain longitudinal directions Angles in the direction of flow.
- the two side surfaces 11 and 13 are each perpendicular on the associated top 21 of a partition 22, wherein it is noted that this is not mandatory.
- the side faces 11, 13, which consist of right-angled triangles, are fixed here with their longer cathete on the partition 22. They are so oriented that they are shorter with theirs
- the catheter forms a joint, including an arrow angle ⁇ .
- the joint is designed as a sharp connecting edge 16 and is also perpendicular to the partition 22. In one Channel installed because of the sharp connection edge the flow cross-section hardly affected by blocking. Due to the longer cathets of the side surfaces 11, 13 and an intersection point 8 is formed by the connecting edge 16, which is in the partition.
- the two the arrow angle ⁇ enclosing side surfaces 11, 13 are symmetrical in Shape, size and orientation and are on both sides of a plane of symmetry arranged by an axis of symmetry 17th and the connecting edge 16 is formed.
- the axis of symmetry 17 is usually the same direction as the channel axis and so like the channel flow.
- An essentially longitudinal edge 12 of the partial roof surface 1 is flush with the hypotenuse of the side surface 11 protruding into the flow channel. This longitudinal edge 12 runs at an angle of inclination ⁇ to the wall 22.
- a downstream rear edge 5 of the partial roof surface 1 lies in a plane perpendicular to Axis of symmetry 17 and is rotated by an angle ⁇ with respect to the partition wall 22, so that the rear edge 5 comes to lie below the partition wall.
- slots must therefore be made in the partition 22, or the partition must be adapted accordingly.
- the partial roof surface 2 is symmetrical to the partial roof surface with respect to the plane of symmetry, formed by the axis of symmetry 17 and the connecting edge 16.
- a longitudinal edge 14 of the partial roof surface 2 is flush with the hypothenus of the side surface 13 protruding into the flow channel Angle of attack ⁇ to the wall 22.
- a rear edge 6 of the partial roof surface 2 also lies in the plane perpendicular to the axis of symmetry 17 and is rotated by the negative angle ⁇ with respect to the partition wall, so that the rear edge 6 comes to lie below the partition wall 22.
- the second longitudinal edge of the partial roof surface 1 forms with the second longitudinal edge of the partial roof surface 2 a connecting edge 10 which lies in the plane of symmetry formed by the axis of symmetry 17 and the connecting edge 16.
- the connecting edge 10 forms with the trailing edge 5 and with the trailing edge 6 a tip 7 located at the downstream end of the vortex generator 9.
- the longitudinal edges 12, 14 together with the connecting edge 16 and the connecting edge 10 form a tip 18 located at the upstream end of the vortex generator 9.
- the triangular partial floor surface 3 is defined through the trailing edge 5 and the intersection 8
- the triangular Partial floor surfaces 4 are defined by the rear edge 6 and the intersection point 8.
- a connecting edge 30 of the partial bottom surfaces 3, 4 thus extends from the top 7 to to intersection 8.
- the vortex generator can also be used without floor surfaces are produced, then the partition Function of the floor areas takes over. This requires the partition be serrated at its downstream end, accordingly the partial floor areas. To the contact area on can further increase the downstream end of the partition the trailing edges of the vortex generator also in different Layers that are not perpendicular to the axis of symmetry.
- a vortex generator 9 ' is on the underside 20 of the partition 22 and a vortex generator 9 the top 21 of the partition arranged side by side.
- the Vortex generator 9 ' is identical in shape and size to that Vortex generator 9, the names already used above for the vortex generator 9 are therefore also for the vortex generator 9 'used, but are provided with an apostrophe.
- the vortex generator 9 can be rotated by 180 ° can be transferred to the vortex generator 9 'about an axis of rotation 19.
- the axis of rotation 19 lies in the partition 22, is parallel to the axis of symmetry 17 and goes through the intersection of Long edge 14 and trailing edge 6.
- the connecting edge 16 of the two side surfaces 11, 13 forms always the upstream edge of the vortex generators 9, 9 '.
- the sharp connecting edge 16 is the point that of the channel flow is applied first.
- the flow across Partition 22 trailing edges 5, 6, 5 ', 6' the roof areas are the last from the channel flow loaded edges.
- the vortex generators 9 'can also be different are designed as the vortex generators 9, wherein the vortex generators always have one of the basic configurations shown have similar geometry. For example, this is advantageous for mixing physically different flows.
- the vortex generator works as follows: Flowing around edges 12 and 14, the flow becomes a pair opposite vortex converted. The vortex axes are in the axis of the flow. The geometry of the vortex generators is selected so that there are no backflow zones during vortex generation arise.
- the vortices of the vortex generator 9 rotate along the roof surfaces and strive for the partition 22 to which the vortex generator is mounted.
- the vertebrae of the vortex generator 9 'rotate below the roof surfaces along and also strive towards the partition 22.
- the swirl number of the vertebra is determined by appropriate Choice of the angle of attack ⁇ and / or the arrow angle ⁇ . With increasing angles become the vortex strength or the swirl number increased and the place of vortex breakdown (vortex break down) - if this is desired at all - migrates upstream down to the area of the vortex generator itself. Depending on Application are these two angles ⁇ and ⁇ by constructive Conditions and determined by the process itself. customized then only the height h of the connecting edge needs to be 16. By choosing the angle ⁇ the vertebrae become like this influences that the larger ⁇ is selected, the better the Mixing of the partial flows takes place. However, the angle ⁇ can not be chosen arbitrarily large, because with increasing ⁇ the pressure drop also increases.
- the shape of the flow Partition 22 is not essential to the operation of the invention is. Instead of the straight form shown in the figures the partition 22 could also be an annular or act hexagonal or other cross-sectional shape.
- the above statement that the Side surfaces are perpendicular to the wall of course can be put into perspective.
- the decisive factor is that on the Line of symmetry 17 lying connection edge 16 perpendicular the corresponding wall. In the case of annular walls the connecting edge 16 would thus be aligned radially his.
- Fig. 5 shows partially a channel with a built-in partition 22.
- the cross section through which flow is through this partition 22 divided into two subchannels with channel heights H1 and H2.
- the top 21 of the partition wall 22 forms a channel wall of the upper channel 41
- the underside 20 of the partition 22 forms a channel wall of the lower channel 42.
- the two Channels could be from the same medium with different ones Flow through speed; or it could be flowing fluids of different density or chemical composition act the shortest way to a specific one evenly distributed concentration can be mixed have to.
- the vortex generators 9, 9 ' can be different in the channels 41, 42 Heights h1, h2 compared to the channel heights H1, H2 exhibit.
- the heights h1, h2 of the connecting edges 16, 16 'of the vortex generators 9, 9' so with the the respective channel heights H1, H2 that the generated Vortex immediately downstream of the vortex generator already such a size that the full channel height H1 + H2 or the full amount of that assigned to the vortex generator Channel part is filled, resulting in an even distribution leads in the loaded cross section.
- Another one Criterion, which influence on the ratio to be chosen h / H can be taken is the pressure drop that occurs when flowing around the Vortex generator occurs. It goes without saying that with larger Ratio h / H also the pressure loss coefficient increases.
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
Description
- dass eine Dachfläche aus zwei Teildachflächen besteht, wobei die längsgerichteten Kanten der Teildachflächen bündig sind mit den Kanten der Seitenflächen und die Teildachflächen über eine Verbindungskante miteinander verbunden sind,
- dass die stromabwärts liegenden Hinterkanten der Teildachflächen mit der Trennwand einen Winkel einschliessen, wodurch die Hinterkanten in Bezug auf die Seitenflächen im wesentlichen auf die andere Seite der Trennwand zu liegen kommen,
- und dass eine Bodenfläche aus zwei Teilbodenflächen besteht, die über eine Verbindungskante miteinander und über die Hinterkanten mit den Teildachflächen verbunden sind.
- Fig. 1
- eine perspektivische Darstellung eines Wirbelgenerators, Sicht von oben;
- Fig. 2
- eine perspektivische Darstellung des Wirbelgenerators, Sicht von unten;
- Fig. 3
- eine perspektivische Darstellung mehrerer Wirbelgeneratoren;
- Fig. 4
- Draufsicht auf die Wirbelgeneratoren von Fig.3;
- Fig. 5
- Teilquerschnitt durch einen Kanal mit darin angeordneten Wirbelgeneratoren.
Die Teildachfläche 2 ist symmetrisch zur Teildachfläche bezüglich der Symmetriebene, gebildet durch die Symmetrieachse 17 und die Verbindungskante 16. Somit ist eine längsgerichtete Kante 14 der Teil-Dachfläche 2 bündig mit der in den Strömungskanal hineinragenden Hypothenuse der Seitenfläche 13. Die Längskante 14 verläuft unter dem Anstellwinkel zur Wand 22. Eine Hinterkante 6 der Teildachfläche 2 liegt ebenfalls in der Ebene senkrecht zur Symmetrieachse 17 und ist um den negativen Winkel γ gegenüber der Trennwand verdreht, so dass die Hinterkante 6 unterhalb der Trennwand 22 zu liegen kommt. Die zweite längsgerichtete Kante der Teil-Dachfläche 1 bildet mit der zweiten längsgerichteten Kante der Teil-Dachfläche 2 eine Verbindungskante 10, die in der durch die Symmetrieachse 17 und die Verbindungskante 16 gebildeten Symmetrieebene liegt. Die Verbindungskante 10 bildet mit der Hinterkante 5 sowie mit der Hinterkante 6 eine am stromabwärtigen Ende des Wirbelgenerators 9 liegende Spitze 7. Die Längskanten 12, 14 bilden zusammen mit der Verbindungskante 16 sowie der Verbindungskante 10 eine am stromaufwärtigen Ende des Wirbelgenerators 9 liegende Spitze 18.
- 1
- Teil-Dachfläche
- 2
- Teil-Dachfläche
- 3
- Teil-Bodenfläche
- 4
- Teil-Bodenfläche
- 5
- Hinterkante von 1 und 3
- 6
- Hinterkante von 2 und 4
- 7
- Spitze
- 8
- Schnittpunkt
- 9
- Wirbelgenerator
- 9'
- Wirbelgenerator an der Unterseite von 22
- 10
- Verbindungskante
- 11
- Seitenfläche
- 12
- Längskante
- 13
- Seitenfläche
- 14
- Längskante
- 16
- Verbindungskante
- 17
- Symmetrieachse
- 18
- Spitze
- 19
- Drehachse
- 20
- Oberseite von 22
- 21
- Unterseite von 22
- 22
- Trennwand
- 30
- Verbindungskante
- 41
- oberer Kanal
- 42
- unterer Kanal
- α
- Pfeilwinkel
- γ
- Winkel von 4 und 5 zu 22
-
- Anstellwinkel
- h1
- Höhe Verbindungskante 16
- h2
- Höhe Verbindungskante 16'
- H1
- Höhe Kanal 41
- H2
- Höhe Kanal 42
Claims (7)
- Mischvorrichtung zum Mischen von zwei oder mehreren Fluiden, welche einen gleichen oder ungleichen Massenstrom aufweisen, wobei die zu mischenden Fluide längs einer Trennwand (22) strömen, an deren stromabwärtigem Ende mehrere frei umströmte Flächen aufweisende Wirbel-Generatoren (9, 9') angeordnet sind, von denen mehrere nebeneinander angeordnet sind, wobei die Seitenflächen (11, 13) des Wirbel-Generators mit einer Seite der Trennwand (22) bündig sind und miteinander einen Pfeilwinkel (α) einschliessen, längsgerichtete Kanten (12, 14) der Seitenflächen (11, 13) unter einem Anstellwinkel () zur Trennwand (22) verlaufen und die beiden Seitenflächen (11, 13) eine Verbindungskante (16) miteinander umfassen, die senkrecht zur Trennwand (22) verläuft und eine von der Strömung zuerst beaufschlagte Kante (16) bildet, wobei fernereine Dachfläche aus zwei Teildachflächen (1, 2) besteht,die Teildachflächen (1, 2) längsgerichtete Kanten aufweisen und mit den Kanten (12, 14) der Seitenflächen (11, 13) bündig sind,die Teildachflächen (1, 2) über eine Verbindungskante (10) miteinander verbunden sind,die stromabwärts liegenden Hinterkanten (5, 6) der Teildachflächen (1, 2) mit der Trennwand (22) einen Winkel (γ) einschliessen, wodurch die Hinterkanten (5, 6) in Bezug auf die Seitenflächen (11, 13) im wesentlichen auf die andere Seite der Trennwand (22) zu liegen kommen, undeine Bodenfläche aus zwei Teilbodenflächen (3, 4) besteht, die über eine Verbindungskante (30) miteinander und über die Hinterkanten (5, 6) mit den Teildachflächen (1, 2) verbunden sind.
- Mischvorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
dass die Teilbodenflächen (3, 4) durch die Trennwand (22) gebildet sind und dass der Wirbelgenerator (9, 9') bestehend aus zwei Seitenflächen (11, 13) und zwei Teildachflächen (1, 2) auf der Trennwand (22) angeordnet ist. - Mischvorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
dass die Hinterkanten (5, 6) der Teildachflächen (1, 2) in einer Ebene senkrecht zu einer Symmetrieachse (17) angeordnet sind. - Mischvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die beiden den Pfeilwinkel (α) einschliessenden Seitenflächen (11, 13) sowie die Teildachflächen (1, 2) des Wirbel-Generators (9) symmetrisch zu einer Symmetrieebene, gebildet durch eine Symmetrieachse (17) und die Verbindungskante (16), angeordnet sind.
- Mischvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Verbindungskante (16) und/oder die längsgerichteten Kanten (12, 14) der Dachfläche scharf ausgebildet sind.
- Mischvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Trennwand (22) in einem doppelkanaligen Behältnis angeordnet ist unter Bildung von zwei Teilkanälen (41,42), und dass in jedem Teilkanal die gleiche Anzahl von Wirbel-Generatoren (9, 9') angeordnet ist, und dass die Wirbel-Generatoren beidseitig an der Trennwand (22) befestigt sind.
- Mischvorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass das Verhältnis Höhe (h1, h2) des Wirbel-Generators (9, 9') zur Höhe (H1, H2) des Teilkanals (41, 42) so gewählt ist, dass der erzeugte Wirbel unmittelbar stromabwärts des Wirbel-Generators die volle Teilkanalhöhe (H1, H2) oder die volle Höhe des Kanals (H1+H2) ausfüllt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19544816A DE19544816A1 (de) | 1995-12-01 | 1995-12-01 | Mischvorrichtung |
DE19544816 | 1995-12-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0776689A1 EP0776689A1 (de) | 1997-06-04 |
EP0776689B1 true EP0776689B1 (de) | 2001-09-05 |
Family
ID=7778915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96810767A Expired - Lifetime EP0776689B1 (de) | 1995-12-01 | 1996-11-11 | Mischvorrichtung |
Country Status (4)
Country | Link |
---|---|
US (1) | US5803602A (de) |
EP (1) | EP0776689B1 (de) |
JP (1) | JPH09173808A (de) |
DE (2) | DE19544816A1 (de) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6015229A (en) * | 1997-09-19 | 2000-01-18 | Calgon Carbon Corporation | Method and apparatus for improved mixing in fluids |
DE19820992C2 (de) * | 1998-05-11 | 2003-01-09 | Bbp Environment Gmbh | Vorrichtung zur Durchmischung eines einen Kanal durchströmenden Gasstromes und Verfahren unter Verwendung der Vorrichtung |
DE59807195D1 (de) * | 1998-11-06 | 2003-03-20 | Alstom Switzerland Ltd | Strömungskanal mit Querschnittssprung |
FR2813062B1 (fr) | 2000-08-17 | 2002-11-15 | Intertechnique Sa | Boite a masques respiratoires pour installation de secours |
TWI222423B (en) * | 2001-12-27 | 2004-10-21 | Orbotech Ltd | System and methods for conveying and transporting levitated articles |
DE10330023A1 (de) * | 2002-07-20 | 2004-02-05 | Alstom (Switzerland) Ltd. | Wirbelgenerator mit kontrollierter Nachlaufströmung |
CN1204945C (zh) * | 2003-09-05 | 2005-06-08 | 刘兆彦 | 一种管、筒或塔内构件立交盘 |
DE102009052142B3 (de) * | 2009-11-06 | 2011-07-14 | MTU Aero Engines GmbH, 80995 | Axialverdichter |
EP2496882B1 (de) | 2009-11-07 | 2018-03-28 | Ansaldo Energia Switzerland AG | Injektionssystem mit brennstofflanzen für einen nachbrenner |
WO2011054739A2 (en) | 2009-11-07 | 2011-05-12 | Alstom Technology Ltd | Reheat burner injection system |
WO2011054760A1 (en) | 2009-11-07 | 2011-05-12 | Alstom Technology Ltd | A cooling scheme for an increased gas turbine efficiency |
WO2011054771A2 (en) | 2009-11-07 | 2011-05-12 | Alstom Technology Ltd | Premixed burner for a gas turbine combustor |
US8434723B2 (en) * | 2010-06-01 | 2013-05-07 | Applied University Research, Inc. | Low drag asymmetric tetrahedral vortex generators |
US8881500B2 (en) * | 2010-08-31 | 2014-11-11 | General Electric Company | Duplex tab obstacles for enhancement of deflagration-to-detonation transition |
US8770649B2 (en) | 2011-10-29 | 2014-07-08 | Alexander Praskovsky | Device, assembly, and system for reducing aerodynamic drag |
US9340281B2 (en) * | 2014-07-31 | 2016-05-17 | The Boeing Company | Submerged vortex generator |
US10252792B2 (en) * | 2015-04-21 | 2019-04-09 | The United States Of America As Represented By The Administrator Of Nasa | Flow disruption devices for the reduction of high lift system noise |
DE102016012454B4 (de) * | 2016-10-19 | 2018-06-28 | Harry Riege | Körperform zur Verringerung des Formwiderstandes bei der Bewegung durch ein Medium. |
CN115920686A (zh) * | 2023-01-17 | 2023-04-07 | 西安热工研究院有限公司 | 静态混合器和静态混合器组 |
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GB1599895A (en) * | 1977-09-28 | 1981-10-07 | Mahler A L | Device for homogenization of a particle filled fluid stream |
DE3116557A1 (de) * | 1981-04-25 | 1982-11-11 | Basf Ag, 6700 Ludwigshafen | Vorrichtung zur invertierung und mischung von stroemenden stoffen |
US4461579A (en) * | 1981-07-31 | 1984-07-24 | Statiflo, Inc. | Motionless mixer combination |
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EP0619133B1 (de) * | 1993-04-08 | 1996-11-13 | ABB Management AG | Mischkammer |
-
1995
- 1995-12-01 DE DE19544816A patent/DE19544816A1/de not_active Withdrawn
-
1996
- 1996-11-06 US US08/744,270 patent/US5803602A/en not_active Expired - Lifetime
- 1996-11-11 EP EP96810767A patent/EP0776689B1/de not_active Expired - Lifetime
- 1996-11-11 DE DE59607626T patent/DE59607626D1/de not_active Expired - Lifetime
- 1996-12-02 JP JP8321988A patent/JPH09173808A/ja not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
DE59607626D1 (de) | 2001-10-11 |
DE19544816A1 (de) | 1997-06-05 |
US5803602A (en) | 1998-09-08 |
JPH09173808A (ja) | 1997-07-08 |
EP0776689A1 (de) | 1997-06-04 |
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